Cameroon striker angered Porto fans by joining former team-mates’ celebration but has made amends with 20 goals this season before the Champions League match with Liverpool

It started as an innocent greeting to some former colleagues and almost ended up burying a fresh start before it had really begun. After Porto’s first match of the Champions League group stage at home to Besiktas in September, Vincent Aboubakar popped his head around the door of the visitors’ dressing room to say hello to his former team-mates.

That was natural enough, given he had won Turkish title with them and they had reached a Europa League quarter-final together while he was on loan at the Istanbul club in 2016-17. He had been so implicated, in fact, he sat out this reunion because of a suspension accrued playing in Europe for Besiktas.